Drinking-water quality and issues associated with water vending machines in the city of Los Angeles.* Many people concerned about the quality of tap water buy bottled water, filtered tap water, or water from a water vending machine. * In California, vending machine water is required to meet all maximum contaminant level Maximum Contaminant Levels are standards that are set by the United States Environmental Protection Agency (EPA) for drinking water quality. A Maximum Contaminant Level (MCL) is the legal threshold limit on the amount of a hazardous substance that is allowed in drinking water under requirements set for public drinking water drinking water supply of water available to animals for drinking supplied via nipples, in troughs, dams, ponds and larger natural water sources; an insufficient supply leads to dehydration; it can be the source of infection, e.g. leptospirosis, salmonellosis, or of poisoning, e.g. . * Water vending machines must be constructed of corrosive-resistant, nonabsorbent material that allows easy cleaning and maintenance. * The dispensing spout must be protected from contamination by a self-closing, tight-fitting door or enclosure. * The water must be disinfected Disinfected Decreased the number of microorganisms on or in an object. Mentioned in: Isolation by a health department-approved method. * The name, address, and phone number of the machine operator must be displayed on each machine. * Each water vending machine must have an annual permit issued by the California Department of Health Services Department of Health Services may refer to:
* This study sampled water from 40 vending machines in Los Angeles, California. * For 17.5 percent of the machines, there was either no posted operator information or the operator could not be contacted. * Over 27 percent did not have the last date of service posted on the machine. * Over 27 percent did not have a door, or had a door that was not self-closing. * Over 12 percent had been vandalized. * A CDHS CDHS California Department of Health Services CDHS Colorado Department of Human Services CDHS Center for Development of Human Services CDHS Central Dauphin High School (Harrisburg, PA, USA) CDHS Comprehensive Data Handling System permit was lacking on 35 percent of machines. * Chlorine was detected in 10 percent of the water samples. * Evidence of mold was found in 60 percent. * Over 30 percent tested positive for coliform bacteria. * Of these, 25 percent contained fecal coliform bacteria. * This study also demonstrated that water vending machines can supply water relatively free of microbial microbial pertaining to or emanating from a microbe. microbial digestion the breakdown of organic material, especially feedstuffs, by microbial organisms. contaminants. * The key difference seems to be the quality of maintenance. |
|
||||||||||||||||||||
Printer friendly
Cite/link
Email
Feedback
Reader Opinion